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https://github.com/openwrt/openwrt.git
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3539430b3d
Fix broken DHCPv6 servers which provide the server unicast option but do not reply on DHCPv6 renew messages directed to the IPv6 address contained in the server unicast option which results in broken IPv6 connectivity. 67ae6a7 odhcp6c: add option to ignore Server Unicast option Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
132 lines
4.5 KiB
Bash
Executable File
132 lines
4.5 KiB
Bash
Executable File
#!/bin/sh
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. /lib/functions.sh
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. ../netifd-proto.sh
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init_proto "$@"
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proto_dhcpv6_init_config() {
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renew_handler=1
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proto_config_add_string 'reqaddress:or("try","force","none")'
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proto_config_add_string 'reqprefix:or("auto","no",range(0, 64))'
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proto_config_add_string clientid
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proto_config_add_string 'reqopts:list(uinteger)'
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proto_config_add_string 'defaultreqopts:bool'
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proto_config_add_string 'noslaaconly:bool'
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proto_config_add_string 'forceprefix:bool'
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proto_config_add_string 'extendprefix:bool'
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proto_config_add_string 'norelease:bool'
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proto_config_add_string 'noserverunicast:bool'
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proto_config_add_array 'ip6prefix:list(ip6addr)'
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proto_config_add_string iface_dslite
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proto_config_add_string zone_dslite
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proto_config_add_string encaplimit_dslite
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proto_config_add_string iface_map
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proto_config_add_string zone_map
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proto_config_add_string encaplimit_map
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proto_config_add_string iface_464xlat
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proto_config_add_string zone_464xlat
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proto_config_add_string zone
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proto_config_add_string 'ifaceid:ip6addr'
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proto_config_add_string "userclass"
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proto_config_add_string "vendorclass"
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proto_config_add_array "sendopts:list(string)"
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proto_config_add_boolean delegate
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proto_config_add_int "soltimeout"
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proto_config_add_boolean fakeroutes
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proto_config_add_boolean sourcefilter
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proto_config_add_boolean keep_ra_dnslifetime
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proto_config_add_int "ra_holdoff"
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}
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proto_dhcpv6_add_prefix() {
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append "$3" "$1"
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}
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proto_dhcpv6_add_sendopts() {
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[ -n "$1" ] && append "$3" "-x$1"
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}
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proto_dhcpv6_setup() {
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local config="$1"
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local iface="$2"
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local reqaddress reqprefix clientid reqopts defaultreqopts noslaaconly forceprefix extendprefix norelease noserverunicast ip6prefix ip6prefixes iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass sendopts delegate zone_dslite zone_map zone_464xlat zone encaplimit_dslite encaplimit_map soltimeout fakeroutes sourcefilter keep_ra_dnslifetime ra_holdoff
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json_get_vars reqaddress reqprefix clientid reqopts defaultreqopts noslaaconly forceprefix extendprefix norelease noserverunicast iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass delegate zone_dslite zone_map zone_464xlat zone encaplimit_dslite encaplimit_map soltimeout fakeroutes sourcefilter keep_ra_dnslifetime ra_holdoff
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json_for_each_item proto_dhcpv6_add_prefix ip6prefix ip6prefixes
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# Configure
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local opts=""
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[ -n "$reqaddress" ] && append opts "-N$reqaddress"
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[ -z "$reqprefix" -o "$reqprefix" = "auto" ] && reqprefix=0
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[ "$reqprefix" != "no" ] && append opts "-P$reqprefix"
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[ -n "$clientid" ] && append opts "-c$clientid"
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[ "$defaultreqopts" = "0" ] && append opts "-R"
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[ "$noslaaconly" = "1" ] && append opts "-S"
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[ "$forceprefix" = "1" ] && append opts "-F"
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[ "$norelease" = "1" ] && append opts "-k"
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[ "$noserverunicast" = "1" ] && append opts "-U"
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[ -n "$ifaceid" ] && append opts "-i$ifaceid"
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[ -n "$vendorclass" ] && append opts "-V$vendorclass"
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[ -n "$userclass" ] && append opts "-u$userclass"
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[ "$keep_ra_dnslifetime" = "1" ] && append opts "-L"
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[ -n "$ra_holdoff" ] && append opts "-m$ra_holdoff"
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local opt
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for opt in $reqopts; do
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append opts "-r$opt"
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done
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json_for_each_item proto_dhcpv6_add_sendopts sendopts opts
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append opts "-t${soltimeout:-120}"
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[ -n "$ip6prefixes" ] && proto_export "USERPREFIX=$ip6prefixes"
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[ -n "$iface_dslite" ] && proto_export "IFACE_DSLITE=$iface_dslite"
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[ -n "$iface_map" ] && proto_export "IFACE_MAP=$iface_map"
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[ -n "$iface_464xlat" ] && proto_export "IFACE_464XLAT=$iface_464xlat"
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[ "$delegate" = "0" ] && proto_export "IFACE_DSLITE_DELEGATE=0"
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[ "$delegate" = "0" ] && proto_export "IFACE_MAP_DELEGATE=0"
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[ -n "$zone_dslite" ] && proto_export "ZONE_DSLITE=$zone_dslite"
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[ -n "$zone_map" ] && proto_export "ZONE_MAP=$zone_map"
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[ -n "$zone_464xlat" ] && proto_export "ZONE_464XLAT=$zone_464xlat"
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[ -n "$zone" ] && proto_export "ZONE=$zone"
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[ -n "$encaplimit_dslite" ] && proto_export "ENCAPLIMIT_DSLITE=$encaplimit_dslite"
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[ -n "$encaplimit_map" ] && proto_export "ENCAPLIMIT_MAP=$encaplimit_map"
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[ "$fakeroutes" != "0" ] && proto_export "FAKE_ROUTES=1"
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[ "$sourcefilter" = "0" ] && proto_export "NOSOURCEFILTER=1"
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[ "$extendprefix" = "1" ] && proto_export "EXTENDPREFIX=1"
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proto_export "INTERFACE=$config"
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proto_run_command "$config" odhcp6c \
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-s /lib/netifd/dhcpv6.script \
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$opts $iface
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}
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proto_dhcpv6_renew() {
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local interface="$1"
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# SIGUSR1 forces odhcp6c to renew its lease
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local sigusr1="$(kill -l SIGUSR1)"
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[ -n "$sigusr1" ] && proto_kill_command "$interface" $sigusr1
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}
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proto_dhcpv6_teardown() {
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local interface="$1"
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proto_kill_command "$interface"
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}
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add_protocol dhcpv6
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